TDA8566TH Philips Semiconductors, TDA8566TH Datasheet - Page 10

• Manufacturer Part Number: TDA8566TH
• Description: 2 x 40 W/2 ohm stereo BTL car radio power amplifier with differential inputs and diagnostic outputs
• Manufacturer: Philips Semiconductors

Philips Semiconductors
TEST AND APPLICATION INFORMATION
Application information
D
Special care must be taken in the PCB layout to separate
pin CLIP from pins IN1+, IN1 , IN2+ and IN2 to minimize
the crosstalk between the CLIP output and the inputs.
M
To avoid switch-on plops, it is advisable to keep the
amplifier in the mute mode during 150 ms (charging of
the input capacitors at pins IN1+, IN1 , IN2+ and IN2 ).
The circuit in Fig.7 slowly ramps-up the voltage at the
mode select switch pin when switching on and results in
fast muting when switching off.
2001 Apr 24
handbook, full pagewidth
IAGNOSTIC OUTPUT
ODE SELECT SWITCH
2
with differential inputs and diagnostic outputs
40 W/2
V in1
V in2
R s /2
R s /2
R s /2
R s /2
stereo BTL car radio power amplifier
V mode
220 nF
220 nF
220 nF
220 nF
10
8
9
2
3
V ref
k
k
k
k
60
60
60
60
Fig.6 Stereo BTL test diagram.
20
10
12
14
DIAGNOSTIC
INTERFACE
DETECTOR
TDA8566TH
handbook, halfpage
CLIP
19
17
13
16
18
15
11
Fig.7 Mode select switch circuit.
1
V supply
100
nF
S
R L1
R L2
47 F
10 k
V P
F/16V
10
k
2200
V P
10
k
CLIP
DIAG
MGU359
Objective specification
TDA8566TH
100
100 k
V P =
14.4 V
MGD102
switch
mode
select